Assignment Scenario: Behind every smart environment there's high-quality networking. It's what lets people and devices connect to keep an organisation moving forward. Which is where we come in. We can support your global business across a range of technologies; from cabling to networking to connected devices, and offer managed services tailored to you. You are appointed as a Network engineer in an IT company, you have been assigned to design, implement a network infrastructure for a client company, The Company HQ in London consist of 3 department HR, design and Sales, the company decided to design a new network infrastructure. The network consists of 4 Servers, DHPC, web, DNS and general file server, all servers are shared between all users. You can also use any updated technologies like Cloud services. The distribution of workstation shown in table 1, describe the requirement of each department. Department Devices HR 35 Computer & Printer Design 25 Computers & Printer ales 12 computers & printer DNS/DHCP/web & File server 4 Servers Branch 15 Computer & printer Table 1: workstation and server distribution and requirements A small branch in Manchester is established with 10 users only, yet connectivity to the main branch is essential, and required with good networks work fast and smooth, with a plan that comes before it is allowed, you can be assured that your network is running with a consistent high level of performance. It is very much evident in the response time and the degree of Department of Information Technology Page 3 of 6 reaction times across computers in your network when you can have a good network design plan to begin with. The IT director emphasised on scalability, redundancy and availability; hence you are required to provide a complete network infrastructure design and implementation, the company will be using private IP address 192.168.168.0/24 for the main branch and private IP address for the branch, the WAN link IP address is of your choice. Based on requirements given in above scenario Analyse and examine suitable network model, networking devices and protocols to design a network infrastructure featuring scalability, availability Used the concept of LAN and WAN in the supposed network design. Your examination should include an analysis of switch and router redundancy protocols and detailed explanation of LAN redundancy concepts, network features, such as bandwidth and load and their related issues.